COMPOSITE OPTICAL MATERIAL AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC C30B23/02 C30B25/02 C30B29/48 

FIELD: chemistry.

SUBSTANCE: composite optical material has a base in form of a transparent substrate wafer made from ZnSe, which is grown by chemical vapour deposition (CVD) whose polished surface is coated with a protective layer of ZnS, which is obtained by physical vapour deposition (PVD), wherein adhesion of the ZnSe substrate wafer to the protective layer of ZnS is provided by an optically transparent transition layer in form of a continuous row of solid solutions ZnSe_xS_1-x, where x varies from 0 to 1, by interdiffusion of sulphur and selenium into the ZnSe and ZnS layers, respectively.

EFFECT: composite optical material ZnSe/ZnS has improved transparency in the visible and near spectral ranges, while preserving high mechanical strength of the ZnSe substrate, high adhesion of the ZnS layer to the substrate while maintaining microhardness value of the ZnS layer.

2 cl, 1 dwg, 1 ex